Hamburg Farms, California

The same ground, surveyed 69 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1913 1982

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1913 USGS Panoche quadrangle1:125000, 4 printings
• 1922 USGS Charleston School quadrangle1:31680, 2 printings
• 1943 USGS Ortigalita Peak quadrangle1:62500, 2 printings
• 1948 USGS Santa Cruz quadrangle1:250000, 2 printings
• 1955 USGS Santa Cruz quadrangle1:250000
• 1956 USGS Charleston School quadrangle1:24000, 5 printings
• 1956 USGS Ortigalita Peak quadrangle1:62500, 2 printings
• 1957 USGS Santa Cruz quadrangle1:250000
• 1958 USGS Santa Cruz quadrangle1:250000, 2 printings
• 1965 USGS Santa Cruz quadrangle1:250000
• 1974 USGS Monterey quadrangle1:250000
• 1982 USGS Mendota quadrangle1:100000, 2 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 144 fires within 5 miles of Hamburg Farms between 1992 and 2020, burning about 28,081 acres in total. 1 started naturally. 10 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Every fire recorded in Merced County

Regional context, not property-specific evidence. The federal mineral resources record lists 2 workings within 5 miles of Hamburg Farms: 1 occurrence, 1 producer. 1 still produces. What was taken out: Diatomite, Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Merced County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 224830. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.